TY  - Data
T1  - Distribution Map of 30m Permafrost in the Kamalan River Basin of Dongpo Tahe Area in Daxing'an Mountains (2023-2025)
A1  - Zang Shuying
DO  - 10.12072/ncdc.nieer.db7242.2026
PY  - 2026
DA  - 2026-03-31
PB  - National Cryosphere Desert Data Center
AB  - This dataset is the distribution data of permafrost in the Kamalan River Basin of the Tahe area on the east slope of the Daxing'an Mountains. It combines actual drilling and pit exploration data (347 permafrost sample points and 310 seasonal permafrost sample points), and is driven by terrain factors, vegetation factors, meteorological factors, and soil and thermal conditions factors (a total of 13 variables). The model is constructed using machine learning methods (random forest), and the simulation accuracy reaches 0.86. Permafrost is mainly distributed in high-altitude mountainous gentle slopes, hills, and some low-lying areas. The distribution of frozen soil is island shaped or patchy. The reliable accuracy enables this frozen soil distribution data to serve as a calibration benchmark and historical reference for simulating permafrost in the Kamaran River Basin under the background of global warming.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/af27c5af-0c53-4d99-9968-258dabe55f03
ER  -